Marey ECO110 3.0 GPM Tankless Water Heater Open Box

  • Model: Marey
  • SKU: ECO110
Marey ECO110 3.0 GPM Tankless Water Heater Open Box

In Stock
Ships Same Day
If ordered by 12PM EST
  • Free Shipping Options Available
  • No Sales Tax *Except TX*
  • Price Match On Most Items
  • Manufacturer Direct
  • Exceptional Customer Service
  • Free Replacement Shipping
To place an order over the phone or for immediate assistance, please call (888) 978-4993. For after hours sales please call (888) 999-1522.

Like new condition.  Most open box units are returns that have never been used.   Ships from the manufacturer in FL. Includes same 5 year warranty as new units. For an expedited shipping quote, please give us a call.

Transit time for most orders: 1-3 days

Manufacturer Refurbished 100% certified by the manufacturer
Manufacturer Refurbished Guaranteed to work like new or your money back
Manufacturer Refurbished 5 year manufacturer warranty
Manufacturer Refurbished Authorized Marey dealer
Manufacturer Refurbished Ships out same or next day


The smartest hot water solutions for the whole house.

  • Compact design: saves space.
  • Requires very little water pressure to activate.
  • Simple to operate and easy to adjust.
  • 5-year warranty.


Marey ECO110 units use SMART heater technology. It is a technology that self-modulates the amount of energy used by the heater, thus providing more efficient heating than the old standard type of heating where the heating element is on or off, giving you more consistent temperatures, while saving you money.
- ETL approved.
- Tankless on demand hot water instantaneous heating.
- No pre-heating.
- No stand-by heating loss; energy-saving.
- Micro-computer control.
- Over temperature protection.
- Conversion between degree Fahrenheit and degree Celsius.
- Digital panel displays outgoing water temperature


  • Tankless Electric Water Heater
  • ETL approved
  • Compliant with Department of Energy electric tankless water heater requirements
  • Digital Panel displays outgoing water temperature
  • Instantaneous tankless heating provides on-demand hot water
  • Compact design makes it easy to install in any home
  • Micro-computer control
  • Over temperature protection
  • Conversion between degree Fahrenheit and degree Celsius
  • Our units use SMART technology by only applying the power need to heat the water to the desired temperature, maximizing energy savings
  • Excellent customer service support and 5 year warranty
ECO110 Specs

The 11Kw Electric Tankless Water Heater is ideal for two or less points of use in your home. This energy efficient model can be adjusted to save energy during the warmer summer months and also consists of multiple heating elements to share the workload and extend the life of the heater and ensures that you can enjoy a steady stream of endless hot water for years to come. At a standard faucet flow of 1.5 GPM the temperature increase is 50 degrees Fahrenheit.


Marey products come with a 5 year manufacturer warranty.

Customer Reviews

Based on 15 reviews

Marey ECO110 3.0 GPM Tankless Water Heater Open Box

eco-110 great unit

i have had it for several years now no problem until storm took out the citys power grid, i think the repeated trys of turning the power back on by the city fried it as i wasnt home to throw the breaker. will be buying a
nother one


Marey ECO110 3.0 GPM Tankless Water Heater Open Box

ECO 110

This was a perfect fit for my application. Installation was easy and quick. Supplies hot water to the bathroom and kitchen. It's mounted under the kitchen sink and the bathroom is about ten feet away from unit. Within 2 seconds I have hot water at the kitchen sink and about 5 Seconds in the bathroom. I have three of these units and they have performed flawlessly. Good product and I highly recommend it.

Very easy to install

Works great straight out of the box

Used & Refurbished

Thousands of units sold with very happy customers and feedback

Used & Refurbished

Refurbished products come directly from the manufacturer, so you can be certain of the quality

Used & Refurbished

Refurbished products are restored by the manufacturer to the same rigorous standards as those set for new products

Used & Refurbished

We offer extended in-home warranties that can be longer than the manufacturer warranty for new items

Used & Refurbished

Each unit is individually tested for performance, whereas only a small subset of new units are tested

More from this collection



Sold Out